Update git submodules

* Update docs/submodules/openretriever from branch 'master'
  - Merge "Fix some issues in ovsdpdk, cni for ovsdpdk"
  - Fix some issues in ovsdpdk, cni for ovsdpdk

    Change-Id: Ib919a14a74c6d33c74c7d4f9baa5fd81b9054cbd
    Signed-off-by: Guo Ruijing <ruijing.guo@intel.com>

diff --git a/docs/submodules/openretriever b/docs/submodules/openretriever
index dbf2942..08db604 160000 (submodule)
--- a/docs/submodules/openretriever
+++ b/docs/submodules/openretriever
@@ -1 +1 @@
-Subproject commit dbf294252cc8b418d920dcd94749630d741c8bb9
+Subproject commit 08db604ab4a7c865547d86549589cdb20cd25228